/* 页面整体背景色 */
body {
    background-color: #f8f9fa;
}

/* 标题样式 */
h1 {
    color: #343a40;
    text-align: center;
    padding: 20px;
    margin: 0;
}

/* 课程分类列表样式 */
.course-category-list {
    list-style-type: none;
    padding: 0;
    margin: 0 auto;
    width: 80%;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    border-bottom: 1px solid #ccc;
    padding-bottom: 10px;
}

.course-category-list li {
    margin-bottom: 10px;
}

.course-category-list a {
    text-decoration: none;
    color: #007bff;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 3px;
}

.course-category-list a:hover {
    background-color: #007bff;
    color: white;
}

/* 课程列表样式 */
.course-list {
    list-style-type: none;
    padding: 0;
    margin: 20px auto;
    width: 80%;
}

.course-list li {
    background-color: white;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.course-list a {
    text-decoration: none;
    color: #343a40;
}

.course-list a:hover {
    text-decoration: underline;
}